Finding the Fourth Proportional to 7,091,712,541.80, 10,637,568,812.70 and 6,994,966,660.20
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Solution
The fourth proportional to 7,091,712,541.80, 10,637,568,812.70 and 6,994,966,660.20 is: 10,492,449,990.30
Step by Step Solution
- Step 1: Write the proportion equation
7,091,712,541.80 : 10,637,568,812.70 = 6,994,966,660.20 : x - Step 2: Convert to fraction form
7,091,712,541.80/10,637,568,812.70 = 6,994,966,660.20/x - Step 3: Cross multiply
7,091,712,541.80x = 10,637,568,812.70 × 6,994,966,660.20 - Step 4: Simplify right side
7,091,712,541.80x = 74,409,439,190,419,800,064 - Step 5: Solve for x
x = 74,409,439,190,419,800,064/7,091,712,541.80 - Step 6: Final answer
x = 10,492,449,990.30
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.